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# Sue s monthly earnings consist of a monthly salary and a 4

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Senior Manager
Joined: 28 Aug 2010
Posts: 255
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Kudos [?]: 655 [0], given: 11

Sue s monthly earnings consist of a monthly salary and a 4 [#permalink]

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27 Dec 2010, 13:58
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45% (medium)

Question Stats:

62% (02:05) correct 38% (00:59) wrong based on 118 sessions

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Sue’s monthly earnings consist of a monthly salary and a 4 percent commission on the portion of her monthly sales that is in excess of $2,000. If Sue’s monthly salary was the same in July as in August, how much greater were her sales in July than in August? (1) Sue’s monthly earnings were$3,620 in July and $3,580 in August. (2) Sue’s monthly salary was$3,500 in July and in August.
[Reveal] Spoiler: OA

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Ajit

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Re: Sue s monthly earnings consist of a monthly salary and a 4 [#permalink]

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27 Dec 2010, 14:52
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ajit257 wrote:
Sue’s monthly earnings consist of a monthly salary and a 4 percent commission on the
portion of her monthly sales that is in excess of $2,000. If Sue’s monthly salary was the same in July as in August, how much greater were her sales in July than in August? (1) Sue’s monthly earnings were$3,620 in July and $3,580 in August. (2) Sue’s monthly salary was$3,500 in July and in August.

can some explain a better way to deal with such problems.

Sue's earnings=fixed salary+4/100(sales-2,000) --> earnings=fixed salary+4/100*sales-80 --> sales=25(earnings-fixed salary+80).

Given: fixed salary(July)=fixed salary(August). Question: sales(July)-sales(August)=25(earnings(July)-fixed salary+80)-25(earnings(August)-fixed salary+80)=25(earnings(July)-earnings(August)) So, all we need is the values of earnings(July) and earnings(August)

(1) Sue’s monthly earnings were $3,620 in July and$3,580 in August. Sufficient.
(2) Sue’s monthly salary was $3,500 in July and in August. Not sufficient. Answer: A. _________________ GMAT Club Legend Joined: 09 Sep 2013 Posts: 15465 Followers: 649 Kudos [?]: 209 [0], given: 0 Re: Sue s monthly earnings consist of a monthly salary and a 4 [#permalink] ### Show Tags 02 Feb 2016, 09:30 Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________ Intern Joined: 05 Aug 2012 Posts: 20 WE: Project Management (Pharmaceuticals and Biotech) Followers: 0 Kudos [?]: 9 [0], given: 55 Re: Sue s monthly earnings consist of a monthly salary and a 4 [#permalink] ### Show Tags 20 Dec 2016, 15:43 Bunuel can we assume it is a fixed salary? Does GMAT assume monthly salary = fixed salary? I would expect it to be specified on test day. Math Expert Joined: 02 Sep 2009 Posts: 38908 Followers: 7739 Kudos [?]: 106231 [0], given: 11618 Re: Sue s monthly earnings consist of a monthly salary and a 4 [#permalink] ### Show Tags 21 Dec 2016, 01:22 raeann105 wrote: Bunuel can we assume it is a fixed salary? Does GMAT assume monthly salary = fixed salary? I would expect it to be specified on test day. The question specifies it perfectly: Sue’s monthly earnings consist of a monthly salary + a 4 percent commission on the portion of her monthly sales that is in excess of$2,000.
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Re: Sue s monthly earnings consist of a monthly salary and a 4   [#permalink] 21 Dec 2016, 01:22
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